A step down chopper is operated at 240V at duty cycle of 75%. Find the value of RMS switch (IGBT/MOSFET) current. Take R = 10 Ω. - Study24x7
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Goraksha Dadhich
27 Apr 2019 11:58 AM study24x7 study24x7

A step down chopper is operated at 240V at duty cycle of 75%. Find the value of RMS switch (IGBT/MOSFET) current. Take R = 10 Ω.

A

2.07 A

B

200 mA

C

1.58 A

D

2.4 A

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  • geet sharma
    •  The switch could be anything, a IGBT, a SCR, a GTO etc. The current through the switch is the same as the current through the load for a step down chopper.
    Vo = Vs/1-α
    α = 0.75
    I = √α x Vs/R.

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    Reply 27 Apr 2019 12:43 PM
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